my opinion The hardest part is recouping in capital to add some more machines or resources to my business since customers aren't always there plus the money I get is for my operating expenses. It isn't hard per se but the expansion of the business would take ages to complete, and we all know that to be successful, one must expand his/her business for faster production and larger capabilities to accept huge orders. Apart from that, I don't have any complains on having a small capital. It is what it is, and it all boils down on how well does one manage property business. For me, the main challenges for small investors is how to compete the market though it is just a small investment but you need to have goal to invest big.
If investors are less likely to suffer psychological distress. Psychology will be spread when the BTC fluctuates in the negative direction. I think the capital is not important, the important thing here is the skills and experience. I think we should focus on analyzing and choosing the right potential coin to make the investment. So even if you have less capital, your profits will increase over time.